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单词
频率标准
释义
频率标准
Encyclopedia
工学
频率标准
释
frequency standard
频率标准
能独立工作的，且能给出较高准确度的单一频率值的正弦信号的装置。简称频标。
理学
〔原子物理应用〕
释
frequency standards
频率标准
用信号频率相当准确和单一的正弦振荡信号发生器确定频率的计量。
Physics
光学、声学
光学
frequency standard
频标
全称“频率标准”。
＞原子与分子物理学＞冷原子分子物理＞释义
frequency standard
频[率]标[准]
Astronomy
frequency standard
频率标准
随便看
police command and dispatch technology
police command automation
Police Community of the Americas
Police Community Service Officers
police compensation
police competency
police control technology
police cooperation along the Belt and Road
police cooperation zone
police criminal compensation
police criminal law enforcement
police crisis negotiation
police cryptography
police devices
police dog
police dog appliying technnology
police dog's technology
Police Education and Training
police education and training
police emotion management
police epaulets
police equipment
Police Equipment Design Committee of Ministry of Public Security
police external supervision
police force composition at crime scene
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更新时间：2026/10/1 17:14:14